Machine for folding and scalloping paper sheets



1 1931. s. J. CAMPBELL I 1,805,510

MACHINE FOR FOLDING AND SCALLOPING PAPER SHEETS Filed Aug. 19. 1929 5Sheets-Sheet l IN V EN TOR.

ATTORNEY May 19, 1931. s. .1. CAMPBELL 1,805,510

MACHINE FOR FOLDING AND SCALLOPING PAPER SHEETS Filed Aug. 19. 1929 5Sheets-Sheet 2 INVENTOR.

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ATTORNEY May 19, 1931. a. J. CAMPBELL 7 1,805,510

MACHINE FOR FOLDING AND SCALLOPING PAPER SHEETS Filed Aug. 19. 1929 3Sheets-Sheet 5 INVENTOR'. ZJWUZ/ BY /g@ j j) ATTORNEY 4 front standards11 support a top rail 13and Patented May 19, 1931 UNITED STATES SAMUELLGAMPBELL, or GREEN BAY, wls'consm, lissrenon TO HUDSON-SHARP 1mvPATENT? OFFICE.

cnmn comenxorennnnnmr, WISCONSIN, A c'onronerron or WISCONSIN MACHINEnon nonnrrrohivn SGALLOPING rhrnn snnn'rs Application ineemi ustie,1929. Serial No. 38 ,767;

This invention relates to a machine privmarily designed for scalloping:the edges of paper napkins and folding the same by continuous'operation. The machine is designed to scallop the edges of the paper webas the same is being fed through the machine,- and to thereafter severthe, web into sectionsof the required length, andto cross-scallop thesections in the cross-cuttingoperatiomandfinaland toeutzofl'stripsontrimmings 29 from the: edges, of the paper "as it is fed forwardly ly tocompletely fold the napkinsintoform for=ultimate delivery.---The'product" of the machine, therefore, is a napkinscalloped on allfour of its edges and folded'to'four or more plies in condition forpackaging and shipment. I The machine, as a whole, is of the generaltypeshown in Patent No.'1,666,086, issued April 17 1928, and the particulardevices constituting the present invention'are in the nature ofmodifications or attachments thereto, so that it is notdeemed necessaryto describe in full detail all of the features of the machine, as awhole, except 'inso faras may be necessary to a full and" complete'understandingof' the special features'of the present invention.

In the drawings, Figure 1 is a planview 1 ofthe machine. Figure-2 isafront view of .the machine. "And Figure-Bisa sectional elevation takenon line 33 of Figure 2:

a The "machine as shown is of 'duplicatexfon mation, so that adescriptionxof one section orcunit thereof will sufiice for both; g

- The machine comprises underframes 10,.

I from eachof which springs'upwardly a front standard lland a rearstandard 12. I The the rear standards support a similar top rail 14. Thefront and rear rails13 andl l are web '17 is'fed. The rails13 alsoafford a support lforrupwardly extending .journal. moune ings 18\and 19,the former of which terminates in an overhanging head 20 through which:is entered anadjustingscrew 21 which s-means for the adjustment of ajournal block 22 which mounts a shaft 23. A lower journal block 24affords a mounting for a lower shaft 25 which carries a roller 26. Thesha'ft 23 affords amounting for a pair of scalloping rolls 27, eachhavinga scalloping die 28' of" sinuous or undulating formation whichyincoactionlwith the roll 26, serve to givea scalloped edging to the paperweb 17 through themachine. The scalloping rolls 27 are preferablyadjustable on the shaft 23, sothat'the width of theicut may be varied.

' 1 After passing through the scalloping mechanism; the paper webproceeds inwardlyover a triangular forming plate 31 which serves to givea longitudinal fold to the advancing ers 33 and34, the-former of whichis provided with an anvil 35 and the latter of which is provided with across-cutting scalloping die 36,1so that as therolls 33 and34r rotatethey will measure ofl' predetermined lengths of the web and sever thesame along an undu latingjor scalloped line giving the necessarycross-cut to complete the cutting of the napkins jAfter passingthroughthe rollers 33 and 34, the advancing web is led between the roller 33and a folding roller 37, where it is cross-folded by the action of anoscillating folder blade 38 of the character set forth and Y describedin Patent No.- 1,666,086. However, the folding and delivery mechanismforms no portion of the I present invention: and 1t is therefore notnecessary to describe the same in further detail. V Oneof the shafts 25is provided atone end with a sprocket 39; which is driven .by a

sprocket chain 40, and positive rotation is impartedifrom the shaft 23by intermeshing spur an idle roller 30 and thence downwardly over gears41. The roller 34 is driven by intermeshing beveled pinions 42 whichderive power from a shaft 43. Suitable gearing 44 is provided forpositively driving the rollers 33 and 32, and sprocket mechanism 45imparts rotation to the other one of the shafts 25 which, throughadequate gearing and connections, imparts a driving movement to thesprocket chain 40 which drives the other sh aft 25. It is not deemednecessary to describe in detail the method of driving the variousmechanisms which are so arranged as to properly time the operation ofthe scalloping dies.

, cutting rolls. which are accurately timed to sever the once folded webby an undulating cross-cut, after which the napkins are finally foldedand fed to the point of delivery. The mechanism is one which permits thescalloping operation to be rapidly and accurately formed withoutcomplicating or otherwise interfering with the feeding and foldingoperations, so that the napkins willbe fed, out and I folded by thecontinuous process and delivand with scalloped edges in condition to bepacked and shipped.

' I claim:

1. In a machine of the class described, the combination of a frameadapted to support a paper roll, roller means for producing a scallopededge cut along each edge of the paper web as it is fed from the roll andmeans for directing the elimination from the machine ofthe trimmed ofi'edges, a former plate located beyond the edging means and adapted tolongitudinally fold the paper web, crosscutting roller means locatedbeyond the former plate. one of said rolls being provided with a scallopcutting die adapted to cross-cut the folded paper web along the cuttingline, and

means for positively driving the edging cutters and the cross cutters intimed relation to one another.

2. In a machine of the class described, the

combination of a frame adapted to support a paper roll, roller means forproducing a Y scalloped edge out along each edge of the paper web as itis fed from the roll and means for directing the elimination from themachine of the trimmed ofi edges, a former cross-cutting roller meanslocated beyond the former plate, one of said rolls being provided with ascallop cutting die adapted to crosscut the folded paper web along thecutting line, means for positively driving the edging cutters and thecross cutters in timed relation to one another, and folder mechanismlocated beyond the cross-cutting rollers and adapted to cross-fold thesevered sheets.

3. In a machine of the class described, the combination of a frameadapted to support a paper roll, roller means for imparting a scallopedout to each edge of the paper web as it is fed from the roller and meansfor directing the elimination from the machine of the trimmed of! edges,a triangular former plate located beyond the scalloping roller 1 meansand adapted to longitudinally fold a paper web. and a pair ofcross-cutting rollers located below the former plate and in transverserelation to the edging roller means, one of the cross-cutting rollersbeing provided with an undulating die adapted to produce a scallopedcross-cut.

4. In a machine of the class described, the combination of a frameadapted to support a paper roll, 'roller'means for imparting a scallopedcut to each edge of the paper web as it is fed from the roller and meansfor directing the elimination from the machine of the trimmed ofi'edges,a triangular former plate located beyond the scalloping roller means andadapted to longitudinally fold a paper web, a pair of cross-cuttingrollers lo cated below the former plate and in transverse relation tothe edging roller means. one of the cross-cutting rollers being providedwith'an undulating die adapted to produce a scallopedcross-cnt, and anoscillating fold ingblade located below the cross-cutting rollers andadapted to impart a cross-fold to the severedpaper sheet delivered fromthe crosscutting rollers.

5'. In a machine of the class described, the combination of means forsupporting a roll of paper, roller means located in alignment with themarginal lines of travel of the paper web for scalloping the edges ofthe paper web as it is fed from the roll means for direoting theelimination from the machine of the trimmed ofl edges. means beyond thescalloping roller means for longitudinallv folding the scallo ed paperweb. cross cutting means bevond the folding means and adapted to providea scalloped out across the paper web. and means for positively drivingthe edge .scalloping and cross scalloping means.

6. In a machine of the class described. the combination of means forsupporting a roll of paper. roller means located in alignment with themarginal line of travel of the paper web for scalloping the edges of thepaper web as it is fed from the roll. means for directing theelimination from the machine of the trimmed off edges, means beyond thesealloping roller means for longitudinally fold-- ing the scallopedpaper web, cross cutting means beyond the folding means and adapted toprovide a scalloped cut across the folded paper Web, means forpositively driving the edge scalloping and cross scallopingr means, andcross folding means adapted to, receive theonce folded paper web fromthe cross cutting sea-Hoping means andadapted to cross fold the same.

In witness that I claim the foregoing I have hereunto subscribed my namethis 29th day of July, 1929.

SAMUEL J. CAMPBELL.

